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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => kilo-2

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https://bugs.launchpad.net/bugs/1374915

Title:
  mount nfs volume failed with "options" is a blank string

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  When mount volume with nfs backend to instance, it would be failed.

          if options is not None:
              nfs_cmd.extend(options.split(' '))

  We find when "options" is a blank string like "" wloud generate a part
  in final cmd as "u''". The final cmd seems like

  [u'mount', u'-t', u'nfs', u'', u'***', u'***']

  And this cmd made the operation of mounting fail.

  We have fixed this bug by simply changing the if statement as follow:

          if options:
              nfs_cmd.extend(options.split(' '))

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